The etched-out name, card number, etc. in relief makes it possible to use a debit/credit card offline—but makes it a lot thicker as well (almost 2x as thick).
In 2017, I believe it is acceptable to have cards that are electronic only. Speaking from personal experience, I have used (and seen) a credit card imprinter only twice in my 26 years of life.
(Note: offline payments are still possible; the machine stores these until it goes online again. The iprinting scenario really is in extreme cases only.)
I have seen a card with the card number etc. etched in once, which was thus as thick as a normal card. The card was marked as ‘electronic use only’ or something, but it worked perfectly well on an everyday basis.
My wallet is a card-only wallet, and it is slightly annoying that all my bank cards take up almost double thickness. If only there were a company out there not afraid to question established norms…